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Gigeabeat S: Reset DMA size info when stopping audio playback and recording transfers so that size remaing/peak buffer calls return 0/NULL when stopped.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28941 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2011-01-01 22:35:00 +00:00
parent 5f43d0db5c
commit 4048cf27a2
1 changed files with 22 additions and 0 deletions
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22
firmware/target/arm/imx31/gigabeat-s/pcm-gigabeat-s.c
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@ -270,6 +270,17 @@ static void play_stop_pcm(void)
SSI_STCR2 &= ~SSI_STCR_TFEN0; /* Disable TX */
SSI_SCR2 &= ~(SSI_SCR_TE | SSI_SCR_SSIEN); /* Disable transmission, SSI */
if (pcm_playing)
{
/* Stopping: clear buffer info to ensure 0-size readbacks when
* stopped */
unsigned long dsa = 0;
dma_play_bd.buf_addr = NULL;
dma_play_bd.mode.count = 0;
clean_dcache_range(&dsa, sizeof(dsa));
sdma_write_words(&dsa, CHANNEL_CONTEXT_ADDR(DMA_PLAY_CH_NUM)+0x0b, 1);
}
/* Clear any pending callback */
dma_play_data.callback_pending = 0;
}
@ -463,6 +474,17 @@ void pcm_rec_dma_stop(void)
SSI_SCR1 &= ~SSI_SCR_RE; /* Disable RX */
SSI_SRCR1 &= ~SSI_SRCR_RFEN0; /* Disable RX FIFO */
if (pcm_recording)
{
/* Stopping: clear buffer info to ensure 0-size readbacks when
* stopped */
unsigned long pda = 0;
dma_rec_bd.buf_addr = NULL;
dma_rec_bd.mode.count = 0;
clean_dcache_range(&pda, sizeof(pda));
sdma_write_words(&pda, CHANNEL_CONTEXT_ADDR(DMA_REC_CH_NUM)+0x0a, 1);
}
/* Clear any pending callback */
dma_rec_data.callback_pending = 0;
}